Nebistar 2.5 Tablet (Nebivolol) works by blocking β₁‑adrenergic receptors in the heart and promoting blood vessel relaxation, which slows the heart rate and reduces the heart’s workload. This can help lower blood pressure and may improve heart efficiency in certain patients. Clinical evidence shows that Nebivolol can also support heart function in patients with chronic heart failure. Individual responses may vary, and it should be taken exactly as prescribed by a doctor.